<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="../node_modules/react/umd/react.development.js"></script>
    <script src="../node_modules/react-dom/umd/react-dom.development.js"></script>
    <script src="../node_modules/babel-standalone/babel.min.js"></script>
  </head>
  <body>
    <div id="reactDom"></div>
    <script type="text/babel">
      let arr = ["吃饭", "睡觉", "打豆豆"];
      let index = -1;
      function fun() {
        let myDom = arr.map((item, i) => {
          return (
            <p
              key={i}
              style={{ color: i == index ? "red" : "" }}
              onClick={() => {
                index = i;
                console.log(index + "----" + i);
                render();
              }}
            >
              {item}
            </p>
          );
        });
        return myDom;
      }
      ReactDOM.render(fun(), document.getElementById("reactDom"));
    </script>
  </body>
</html>
